Home / 18,272.79-27,392.78-7,187.43

Finding the Fourth Proportional to 18,272.79, 27,392.78 and 7,187.43

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Solution

The fourth proportional to 18,272.79, 27,392.78 and 7,187.43 is: 10,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.79 : 27,392.78 = 7,187.43 : x
  2. Step 2: Convert to fraction form
    18,272.79/27,392.78 = 7,187.43/x
  3. Step 3: Cross multiply
    18,272.79x = 27,392.78 × 7,187.43
  4. Step 4: Simplify right side
    18,272.79x = 196,883,688.76
  5. Step 5: Solve for x
    x = 196,883,688.76/18,272.79
  6. Step 6: Final answer
    x = 10,774.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.